Power-operated plow or other agricultural implement



Sept. 17, 1929. J. MALONYA? ICULTURAL IMPLEMENT FOWER OPERATED PLQW OR OTHER AGR Filed June 1,5, 1.927

Fig.2 3 3 9 B D1 B 4 D 1018 I 19 D 0 [mrmfor Jo/m/ZZ/onyay 1W Patented Sept. 17, 1929. T p I UNITED STATES PATENT OFFICE JOHN MALONYAY, OF SZEKSZABD, HUNGARY POWER-OPERATED PLOW OR OTHER- AGRICULTURAL IMPLEMENT Application filed June 15, 1927, Serial No. 198,952. and in Hungary August 27, 1925.

My invention relates to power-operated by the fact that the shafts connected through plows or other agricultural implements on the chain gearing are further connected the single machine system and has particuthrough a spur gearing. The extensiveness lar reference to a known type of such plows of the gearing makes it diflicult to enclose or implements which is adapted to perform and keep in good order.

both the outward and inward draughts by The object of my invention being to elimimeans of a single rope and without the aid nate these drawbacks, I dispose the pulley of anchoring devices in such a way that the on an axle which cuts the shaft of the rope wound with its ends on two winding ground wheels at right angles, and preferdrums mounted upon the driving machine, ably beneath this shaft. In preventing runs over a pulley mounted upon the plow thereby the tilting of the plow or impleor implement so as to serve, in the outward ment about the shaft of the ground wheels, draught, as a driver for the ground wheels, I at once render it possible to transmit the and, in the inward draught, for a drawalternate rotatory movements of the pulley as 15 hook. Either one of the winding drums is always unidirectional rotations to the shaft driven in both draughts, the other drum of the ground wheels through a double bevel rotating loosely in the outward draught to gear connection allowing at once to disconunwind the rope and being braked or othernect the shaft of the ground wheels from wise secured against rotation in the inward the axle of the pulley by simply ungearing :o draught. the pinion which, for this purpose, is slidal-leretofore, the said pulle was mounted bly mounted upon the axle of the pulley. on a countershaft parallel with theshaft of The gearing being so simplified, I am able the ground wheels and power was transto give it a construction of such compactmitted from the countershaft to the shaft ness as will allow to lodge the entire transof the ground wheels, in one direction of mission mechanism together with the means rotation of the pulley corresponding to the for ungearing the pinion in a single casing winding up of the rope by the one drum, which may comprise also the bearings for through a spur gearing, and in the other the shaft of the ground wheels and carry, direction of rotation of the pulley correif desired, the pulley, too. Thus I am able sponding to the winding up of the rope by to concentrate the weight of all the driving 30 the other drum, through a chain gearing in mechanism and correlated parts upon the order to have the ground wheels driven alshaft of the ground wheels so that their adways in the same direction correspondlng to hesion becomes increased in a very advanthe outward draught. Thus, for the outtageous manner.

; ward draught, the pulley was coupled, ac- In the drawings there is shown a concording to its direction of rotation, either structional form of my invention, the drivwith the spur gearing or with the chain ing machine carrying the winding drums gearing, while, for the inward draught, it each loosely mounted on, but adapted to be was to be uncoupled from both gearings. coupled to, a constantly driven shaft, and

This known onstructionhas many draweach provided with a brake, being omitted backs, the principal ones being as follows as known and not coming under the scope of The frame of the plow or implement will my claims.

tilt about the shaft of the ground wheels, Fig. l is a plan of the implement which the spur gear on the countershaft climbing is assumed to be a plow, the shares being, up that on the shaft of the ground wheels, however, not shown. Fig. 2 is a front view as soon as the ground wheels meet with a of the same plow on a larger scale and resistance above a very low limit against partly in section. Fig. 3 is a section on the turning. The drawbacks generally adherline 3-3, Fig. 2.

ing to chain gearings especially in agricul- A represents the frame of the plow in tural machines are yet increased in" this case the usual, substantially triangular form, B, 00

B are two front ground wheels, and C is a rear steering wheel. Secured to the front end of the frame is the lower half of a casing D which is divided along the shaft 4: of the ground wheels and consists of a hollow sphere D having two lateral projections D 'D of a considerable length and a projection D at the base. The lateral projections 1), form bearings for the shaft 4, the projection 11 carries on its outside the pulley 5 and shelters the axle 6 thereof, and the hollow sphere D serves as an enclosure for the gearing to be described in what follows.

The upright axle 6 of the pulley 5 is disposed beneath the shaft t so as to cut the latter at right angles, and carries a pinion 7 slidably keyed thereon so as to be capable of being slid into and out of engagement with two bevel wheels 8 and 9 at the same time, which wheels sit loosely on the shaft 4. The disks of these bevel wheels have a hemispherical form in order to receive in the space between them a duplex clutch as well as the means for displacing the pinion 7. Said duplex clutch consists of two clutch members 10 and 11 integral with, or, if desired, secured to, the bevel wheels 8 and 9, respectively, and a couplingbox 12 slidably splined upon the shaft 1 and provided at both ends with ratchet teeth adapted to engage with similar teeth of the clutch members 10 and 11, the inclined sides of the ratchet teeth being so directed that the coupling-box will be engaged by the teeth of a clutch member 10 or 11 rotating in the direction corresponding to the backward movement or course of the plow, but thrust away by the teeth of a clutch member 11 or 10 rotating in the other direction. As the bevel wheels rotate always in opposite directions, one or the other of the clutch members 10 or 11 will always engage the coupling-box 12, thus causing the shaft '1 to retate always in the direction corresponding to the outward draught of the plow whether the pulley 5 and the pinion 7 rotate in the one or other direction. Bevel wheel 8 is coupled to the shaft 4 when the run S, of the rope is drawn, and bevel wheel 9 is coupled to the shaft l when the run S of the rope is drawn.

Instead of acting through the described duplex clutch, the bevel wheels 8 and 9 may, of course, act through any known types of one-way clutches upon the shaft 4:. I

For sliding the pinion 7 into and out of engagement with the bevel wheels 8 and 9, any known meansmay be employed but I give preference to the new means represented in Figs. 2 and 3 and constructed as follows Theupwardly prolonged hub 13 of the pinion 7 carries rotatably between the collars 14; a diametrically divided ring 15 which is attached by a. pair of pivots 16, 16 to a pair of eccentric rods 17 17. The eccentric disks are keyed to a hollow shaft 18 having a shaft 19 passed through it and secured thereto by a pin 20. The hollow shaft is journaled in brackets 21, 21' projecting from the lower half of the hollow sphere D into the space between the two bevel wheels 8 and 9. The rear end of the shaft 19 extends beyond the casing and car ries a crank handle 24 within the grasp of the plowman on the seat 23.

The two halves of the casing may be tightly united by means of screw-bolts 25 and oil may be filled into the space enclosed. After unscrewing the bolts 25, the upper half of the casing may be removed, all the enclosed parts being left in their working positions.

In using the plow, for the outward draught the pinion 7 is slid into gear by giving half a turn to the crank handle 24. It will be understood from the aboie description that the pinion being in gear the ground wheels. are driven and they are always driven in the direction corresponding to the backward movement or course of the plow whether run S or run S of the rope is drawn. For the inward draught, the pinion 7 is ungeared by turning the handle over into the former position. The pulley 5 being thus disconnected from the shaft of the ground wheels it may perform the service of a draw-hook on ordinary power-operated plows;

I am aware that a double bevel gear connection with duplex one-way clutch has already been employed for the transmission of alternate rotatory movements of a shaft as always unidirectional rotations to another shaft parallel with or perpendicular to said first shaft, and I do not claim such a mechanical movement in itself nor the mere applicationthereof to an agricultural implement of the type to which my invention relates, butlVhat I claim is:

1. A. power-operated agricultural implement, comprising a pair of ground wheels, asubstantially horizontal shaft carrying said ground wheels, a pulley rotatable about an axis cuttingsaid shaft at right angles, power transmission connections b tween said pulley and said shaft including one-way clutches to transmit alternate rotations of said pulley as unidirectional rotatory movements to said shaft, and means for disconnecting said power transmission connections.

2. A power-operated agricultural imple- I ment, comprising a pair of front ground wheels, a substantially horizontal shaft carrying said ground wheels, a rear steering wheel, a rotatable axle cutting said shaft at right angles, a pulley carried by said axle in a plane parallel with and beneath said shaft, power transmission connections between said pulley and said shaft including one-way clutches to transmit alternate rotations of said pulley as unidirectional rotatory movements to said shaft, and means for disconnecting said power transmission connections.

In a power-operated agricultural implement, a pair of ground wheels, a substantially horizontal shaft carrying said ground wheels, a pulley rotatable about an axis cutting said shaft at right angles, a pair of bevel wheels on said shaft, a pinion rotating with said pulley and adapted to be throw in and out of engagement with both members of said pair of bevel wheels at the same time, and unidirectional driving connection between said pair of bevel wheels and said shaft.

4-. In a. power-operated agricultural implement, a pair of ground wheels, a shaft carrying said ground wheels, a rotatable axle cutting said shaft at right angles, a pulley secured to said axle, a pair of bevel wheels on said shaft, a pinion slidable on and rotatable with said axle and adapted to mesh with both members of said pair of bevel wheels at the same time, means for sliding said pinion along said axle into and out of mesh with said pair of bevel wheels, said means comprising a ring rotatable upon the prolonged hub of said pinion, a pair of eccentrics linked with their rods to said ring, a shaft carrying the disks of said pair of eccentrics, and a crank handle on the lastnamed shaft to operate said pair of eceentries so as to throw said pinion into and out of mesh; and unidirectional driving connection between said pair of bevel wheels and thc'shaft carrying the ground wheels.

5. In a power-operated agricultural implement, the combination of a casing, a shaft within said casing, and a member rotatable with and slidable on said shaft, with external means for causing said member to slide along the shaft within said casing, said means comprising a ring rotatable upon said member about said shaft, a pair of eccentrics located within said casing and linked with their rods to said ring, a shaft carrying the disks of said pair of eccentrics and having one end projecting out of said casing, and a crank handle on said projecting end of said shaft to operate said pair of eccentrics.

6. In a power-operated argicultural imple ment, a pair of ground wheels, a shaft carr ing said ground wheels, a rotatable axle cutting said shaft at right angles, a pulley secured to said axle, a pair of bevel wheels with hemispherical disks on said shaft, a pinion slidable on and rotating with said axle and adapted to mesh with both members of said pair of bevel wheels at the same time, means for sliding said pinion along said axle into and out of mesh with said pair of bevel wheels, and means establishing unidirectional driving connection between said pair of bevel wheels and said shaft, both lastnamed means being located in the space between said bevel wheels.

7. In a power-operated agricultural implement, a pair of ground wheels, a shaft carrying said ground wheels, a rotatable axle cutting said shaft at right angles, a pulley secured to said axle, a pair of bevel wheels with hemispherical disks on said shaft, a pinion slidable on and rotating with said axle and adapted to mesh with both members of said pair of bevel wheels at the same time, means for sliding said pinion into and out of mesh with said pair of bevel wheels, means establishing unidirectional driving connection between saidpair of bevel wheels and said shaft, both last-named means being located in the space between said bevel wheels, and a casing consisting of a substantially spherical. body with two lateral projections and a projection at the base, the spherical body enclosing said pair of bevel wheels together with the parts located in the space between them, the lateral projections forming bearings for said shaft, and the pro jection at the base of said casing serving for the reception of said pinion in its out-ofmesh position.

8. A power-operated agricultural implement, comprising a pair of ground wheels, a shaft carrying said ground wheels, a pulley rotatable about an axis cutting said shaft at right angles, means by which alternate rotatory movements of said pulley are trans mitted as unidirectional rotatory movements to said shaft, means for disconnecting said pulley from said shaft, and a casing enclosing both said means and having two projections forming bearings for said shaft and a third projection upon which said pulley is mounted outside said casing.

In testimony whereof I have hereunto set my hand.

JOHN MALONYAY. 

